Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/20/2020   18:31:31   (   0.02, -75.21) (  -0.06, -75.48)   30.53                80
 07/21/2020   18:15:15   (   0.02, -75.22) (   1.01, -70.91)  492.38                80
 07/23/2020   06:34:05   (  -0.02, -75.23) (   0.20, -76.09)   99.08                80
 07/24/2020   06:17:49   (  -0.01, -75.23) (  -0.87, -71.52)  424.06                80
 07/25/2020   18:36:47   (   0.02, -75.26) (  -0.29, -76.75)  169.09                80
 07/26/2020   18:20:31   (   0.01, -75.27) (   0.72, -72.16)  354.48                80
 07/28/2020   06:39:21   (  -0.02, -75.29) (   0.43, -77.36)  235.96                80
 07/29/2020   06:23:05   (  -0.02, -75.30) (  -0.58, -72.78)  287.66                80
 07/30/2020   18:42:03   (   0.02, -75.33) (  -0.57, -78.00)  304.92                80
 07/31/2020   18:25:47   (   0.02, -75.35) (   0.44, -73.42)  219.04                80
 08/02/2020   06:44:37   (  -0.03, -75.37) (   0.72, -78.62)  370.51                80